package com.hyhy.hycloud.commons.util.encrydecry.rsa;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

/**
* @ClassName: DES
* @Description: DES加解密工具类
* @author MS
* @date 2018年2月5日
*/
public class Des {

	private static byte[] iv = { 1, 2, 3, 4, 5, 6, 7, 8 };

	public static String encryptDES(String encryptString, String encryptKey) throws Exception {
		IvParameterSpec zeroIv = new IvParameterSpec(iv);
		SecretKeySpec key = new SecretKeySpec(encryptKey.getBytes(), "DES");
		Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
		cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv);
		byte[] encryptedData = cipher.doFinal(encryptString.getBytes());
		return Base64Code.encode(encryptedData);
	}

	public static String decryptDES(String decryptString, String decryptKey) throws Exception {
		byte[] byteMi = Base64Code.decode(decryptString);
		IvParameterSpec zeroIv = new IvParameterSpec(iv);
		SecretKeySpec key = new SecretKeySpec(decryptKey.getBytes(), "DES");
		Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
		cipher.init(Cipher.DECRYPT_MODE, key, zeroIv);
		byte decryptedData[] = cipher.doFinal(byteMi);

		return new String(decryptedData);
	}
}
